New peptide drug aims to tame sepsis in pneumonia patients

NCT ID NCT06669403

Disease control Sponsor: Op-T LLC Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This early-stage trial tests a drug called OPT101 in 26 adults hospitalized with pneumonia and sepsis. The drug is designed to reduce harmful inflammation. The main goal is to check safety and how the body processes the drug, not yet to prove it works.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
OPT101 (a peptide designed to reduce inflammation)
What this could lead to
If it works, this could point toward a new treatment to control dangerous inflammation in pneumonia patients with sepsis.
What could go wrong
This is a very early Phase 1 trial with only 26 people, focused on safety. It may not show any benefit, and side effects are unknown.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 26 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Dec 2025

An estimate. Start dates often move.

Expected to finish

May 2026

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Are able and willing to give signed informed consent (legally authorized representative can provide informed consent if needed). 2. ≥18 years old; 3. Patients hospitalized for clinically suspected community acquired pneumonia (CAP), defined as the occurrence of (within 48h from hospital admission) at least 1 of the following signs: * respiratory rate \> 30 breaths/min; * fever (\> 38.0°C or \> 100.4° F); * leukopenia (≤ 4,000 WBC/mm3 or leukocytosis (≥ 12,000 WBC/mm3); * adults ≥ 70 years of age; altered mental status with no other recognized cause; AND at least 1 of the following: * New onset of purulent sputum or change in character of sputum or increased respiratory secretions; * New onset or worsening cough, or dyspnea, or tachypnea; * Rales or bronchial breath sounds; AND Radiologic imaging (chest x-ray or CT scan) evidence of pulmonary involvement with new and persistent or progressive and persistent infiltrate, consolidation or cavitation AND SpO2 \<92% at room air, or PaO2/FiO2 (or SpO2/FiO2) \<300; recorded on one episode 4. Need for non-invasive supplemental oxygen (nasal cannula, simple mask, venturi or reservoir cannula/mask or heated high flow nasal cannula oxygen. 5. Females of child-bearing potential who are sexually active must not wish to get pregnant within 30 days after the end of the study and must be using at least one of the following reliable methods of contraception: * Hormonal contraception, systemic, implantable, transdermal, or injectable contraceptives for at least 2 months before the screening visit until 30 days after the last OPT101 dose * A non-hormonal intrauterine device \[IUD\] or female condom with spermicide or contraceptive sponge with spermicide or diaphragm with spermicide or cervical cap with spermicide for at least 2 months before the screening visit until 30 days after the last OPT101 dose * A male sexual partner who agrees to use a male condom with spermicide * A sterile sexual partner Exclusion Criteria: 1. Need for endotracheal intubation and mechanical ventilation or extracorporeal membrane oxygenation (ECMO) at time of study screening 2. QTc ≥ 450 msec on screening ECG 3. Hepatic dysfunction: ALT or AST \> 5 ULN; history of chronic hepatic disease (defined with Child-Pugh score ≥ 12) 4. Recent or active hepatitis A infection; test positive or have been treated for hepatitis B, hepatitis C, or HIV infection; evidence of active or untreated latent TB; a recent history of recurrent herpes zoster and/or opportunistic infection; and/or taking immunosuppressant medication. 5. Renal dysfunction: estimated glomerular filtration rate (eGFR) \<50 mL/min/1.73 m2, or need for hemodialysis or hemofiltration 6. Current use of \>2 immunosuppressive medications or immunosuppression status (AIDS, aplastic anemia, asplenia, systemic chemotherapy within the past 3 months, neutropenia (ANC \< local LLN), solid organ or bone marrow transplant recipients) 7. Treatment with prohibited medication within 5 half-lives, and inability to stop during treatment period 8. Anticipated discharge from the hospital or transfer to another hospital within 48 hours of screening 9. Allergy to OPT101or any component of OPT101 formulation 10. Participation in other interventional clinical trials 11. Pregnancy: * positive or missing pregnancy test before first drug intake or day 1 * pregnant or lactating women; * Women of childbearing potential and fertile men who do not agree to use at least one primary form of contraception for the duration of the study 12. Current hospital stay \>72h 13. Complicated CAP-associated conditions, such as fungal pulmonary infection, tuberculosis infection, abscess, empyema, significant bilateral pleural effusion, massive pulmonary embolism 14. Weight is over 250lbs 15. Any other condition which the Principal Investigator feels may jeopardize the safety of the patient or the objectives of the study. The Principal Investigator should make this determination in consideration of the patient's medical history and current clinical condition. \-

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Conditions

The condition(s) this trial relates to.

Community-Acquired Pneumonia infectious disease with sepsis pneumonia Sepsis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Denver Health and Hospital Authority

    Denver, Colorado, 80204, United States

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